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Angular dispersion of oblique phonon modes in BiFeO.sub.3./sub. from micro-Raman scattering
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SYSNO ASEP 0359003 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Angular dispersion of oblique phonon modes in BiFeO3 from micro-Raman scattering Author(s) Hlinka, Jiří (FZU-D) RID, ORCID
Pokorný, Jan (FZU-D) RID, ORCID
Karimi, S. (GB)
Reaney, I. M. (GB)Source Title Physical Review. B - ISSN 1098-0121
Roč. 83, č. 2 (2011), "020101-1"-"020101-4"Number of pages 4 s. Language eng - English Country US - United States Keywords BiFeO3 ; Raman scattering ; phonon modes ; multiferroic Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GAP204/10/0616 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000286746100001 DOI 10.1103/PhysRevB.83.020101 Annotation The angular dispersion of oblique phonon modes in a multiferroic BiFeO3 has been obtained from a micro-Raman spectroscopic investigation of a coarse grain ceramic sample. Continuity of the measured angular dispersion curves allows conclusive identification of all pure zone-center polar modes. The metod employed here to reconstruct the anisotropic crystal property from a large set of independent local measurements on a macroscopically isotropic ceramic sample profits from the censiderable dispersion of the oblique modes in ferroelectric perovskites and it can be in principle conveniently applied to any other optically uniaxial ferroelectric material. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
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